You are in this profession as a calling, not a business; as a calling which exacts from you at every turn self-sacrifice, devotion, love and tenderness to your fellow-men. Once you get down to a purely business level, your influence is gone and the true light of your life is dimmed. You must work in the missionary spirit, with a breadth of charity that raises you far above the petty jealousies of life.
The young doctor should look about early for an avocation, a pastime, that will take him away from patients, pills, and potions . . . No [person] is really happy or safe without one, and it makes precious little difference what the outside interest may be – botany, beetles or butterflies, roses, tulips, or irises, fishing mountaineering or antiquities – anything will do so long as he straddles a hobby and rides it hard.
But do not get too deeply absorbed [in your work] to the exclusion of all outside interests. Success in life depends as much upon the [person] as on the physician. Mix with your fellow students, mingle with their sports and their pleasures. … You are to be members of a polite as well as of a liberal profession and the more you see of life outside the narrow circle of your work the better equipped you will be for the struggle.